供应商专项投资与感知的合作风险:关系发展阶段与控制机制的调节作用研究

本文从供应商———制造商关系发展这一动态的角度探讨供应商专项投资与其感知合作风险之间的关系以及契约和关系规范的不同调节作用.通过对中国家电行业261对供应商与制造商的关系的问卷调查,采用因子分析和多元回归的方法对概念模型及假设进行验证.本文研究结果表明:(1)在不同的关系发展阶段供应商专项投资与其感知的合作风险有着显著的差异.(2)尽管契约和关系规范对供应商专项投资与其感知的合作风险间的正向关系有着负向调节作用,但在关系发展的不同阶段,这种调节作用也存在着显著的差异.本文对于认识和了解关系发展阶段中供应商专项投资带来的合作风险感知水平的变化以及两种不同控制机制调节作用的差异性具有重要的理论和现实意义.     

Aggregation and Optimization with State‐Dependent Pricing: A Comment

A key argument in Caplin and Leahy (1997) states that the correlation between monetary shocks and output is falling in the variance of the money supply. We demonstrate that this conclusion depends on solving for the correlation in the nonstationary state of the model. In the stationary state, that correlation is initially rising.     

语言多样性、信息获取与分析师盈余预测质量

考察了语言多样性对分析师盈余预测质量的影响,以及这种影响如何因员工教育水平的不同而变化.基于中国上市公司的实证检验结果显示,语言多样性显著降低了分析师盈余预测质量,但是随着公司员工受教育水平提高,语言多样性对分析师盈余预测质量的负面影响有所减弱.进一步研究发现,分析师与CEO间的校友关系增强了员工教育水平对语言多样性与分析师盈余预测准确性之间关系的正向调节作用.研究结论一定程度上丰富了分析师私有信息获取及其影响机理以及社会关系等方面的文献,而且还可帮助投资者、监管者等利益相关方更好地理解分析师行为,促进资源合理配置,增强资本市场的有效性等方面具有一定的启示意义.     

股权众筹投融资方的最优策略分析

分析了股权众筹融资方和投资方的最优策略.依据股权众筹的流程,构建了股权众筹过程中投融资方利益博弈的3阶段模型,并在同时满足融资方与投资方预期收益最大化的条件下,求解了相应的最优化问题并给出了投融资方最优策略的解析式.研究结果表明,在参数满足一定条件时,股权众筹投融资方均存在最优策略,且最优策略受边际收益、项目成功概率、预期回报率等因素的影响.     

基于马尔科夫切换模型的上证指数周收益率时间序列分析

本文先对上证指数收益率时间序列做非线性检测,再对时间序列进行结构性变化检测,发现上证指数收益序列既是非线性时间序列又有结构性变化;通过构建一个3状态,3阶滞后的异方差马尔可夫切换模型对1990年12月21日至2008年8月22日上证指数周收益率时间序列规律进行了实证分析,采用极大似然估计法对模型参数进行估计,识别出股市波动的三种主要的状态:慢涨、慢跌和快涨;实证结果表明马尔可夫切换模型能够比较有效的刻画股市波动的阶段性特征.     

Illustrating Risk: Anaphylaxis Through the Eyes of the Food‐Allergic Child

The risk perception research is widely focused on children as targets of risk. To date, very few studies have consulted with the impacted group to assess the perceptions of risk associated with the exposures of interest. Much less research has investigated the experiences of children at risk for anaphylaxis, their concerns, and the psychosocial stresses associated with risk. The present study explores the perceptions and experiences of Ontario students with anaphylaxis, and their parents regarding school as a safe place in order to inform school policy around risk management and coping. A “child‐centered” analytical framework incorporating illustrative techniques within interpretative analysis is outlined. Five prominent themes: (a) social and environmental barriers to safety, (b) coping strategies, (c) emotional burden of responsibility, (d) balance of responsibility (transitions), and (e) redefining “normal” are discussed. Results found that “child‐centered” techniques empowered children in a process that is meaningful and relevant to their lives. A preliminary framework for understanding what risk means to children highlighted the differences in how they cope in the public sphere of school.     

基于“三性”分析的商业银行经营绩效综合评价模型

流动性、安全性和盈利性(统称为“三性”是商业银行经营管理的基本原则。它们之间既相互依存又相互冲突和矛盾。协调处理这三者之间的关系,一直是评价商业银行经营绩效的难点。本文所建立的综合评价模型,其指标体系涵盖了流动性、安全性和盈利性三个方面,将银行经营绩效层层分解为具体的财务报表数据,合理解决了同一指标在对“三性”产生不同影响时的评分问题。将“三性”之间的制约矛盾量化为具体的模型。     

An integrated approach for water resources decision making under interactive and compound uncertainties

In recent years, the issue of water allocation among competing users has been of great concern for many countries due to increasing water demand from population growth and economic development. In water management systems, the inherent uncertainties and their potential interactions pose a significant challenge for water managers to identify optimal water-allocation schemes in a complex and uncertain environment. This paper thus proposes a methodology that incorporates optimization techniques and statistical experimental designs within a general framework to address the issues of uncertainty and risk as well as their correlations in a systematic manner. A water resources management problem is used to demonstrate the applicability of the proposed methodology. The results indicate that interval solutions can be generated for the objective function and decision variables, and a number of decision alternatives can be obtained under different policy scenarios. The solutions with different risk levels of constraint violation can help quantify the relationship between the economic objective and the system risk, which is meaningful for supporting risk management. The experimental data obtained from the Taguchi's orthogonal array design are useful for identifying the significant factors affecting the means of total net benefits. Then the findings from the mixed-level factorial experiment can help reveal the latent interactions between those significant factors at different levels and their effects on the modeling response.     

残疾女性的生存境遇及其相关对策思考——以河南省为例

残疾女性是社会生活中亟需关注的弱势群体。残疾和女性的二重身份使得她们在社会生活中面临诸多困境。为此，需要我们积极进行对策思考，以便能帮助残疾女性尽快走出生存困境，求得更好的发展。     

“平等”之道德立法原理新论

平等，是人类文明的内在道德立法原理。从蒙昧时期到野蛮阶段，自然主义平等充任着人类生活的普遍准则；国家诞生后，权力主义等级内平等充当着人类文明的内在道德立法原理；进入近代社会，等级平等原理被人人平等原理所取代，由此建立起人类中心主义的现代文明，这种文明制造了人与自然间的不平等。因此，当代人类应重建普遍平等之道德立法的价值尺度原理，这一普遍平等原理的内在本质是普遍利益权利；其存在论原则是自然平等、万物平等、生命平等；其生存论方向是人人存在人权平等和公民生存权利平等。